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Lecture

Possible Evolutionary Relationships.docx

5 Pages
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Department
Anthropology
Course Code
ANTH 2231
Professor
B.Galdiks

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Possible Evolutionary Relationships
Aferensis and Africans overlap in time
May be descendants instead of different species
Paranthropus Robustus
South African species
“Nutcracker Man”
HUUUUUUGE molars (cheek teeth)
~ 2.0-1.0 mya
SK 48
530 cc
Endo-cranial cast (used in the Selam fossil)
Morphology of brain
Development of specific areas of the brain
Increase in frontal lobe
Portable cortex
Thrible height
Improved abstract thinking
o Language
o Problem solving
Forward Foramen magnum
o Obligate bipeds
Increased in brain size
Small bodied 4 ft 1
High encephalization
Even flatter face than Australopithecines

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Description
Possible Evolutionary Relationships • Aferensis and Africans overlap in time  May be descendants instead of different species Paranthropus Robustus • South African species • “Nutcracker Man” • HUUUUUUGE molars (cheek teeth) • ~ 2.0-1.0 mya • SK 48 • 530 cc • Endo-cranial cast (used in the Selam fossil)  Morphology of brain  Development of specific areas of the brain  Increase in frontal lobe  Portable cortex  Thrible height  Improved abstract thinking o Language o Problem solving Forward Foramen magnum o Obligate bipeds • Increased in brain size  Small bodied 4 ft 1  High encephalization Even flatter face than Australopithecines • Thick enamel on molars  Canine and
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